诶 (誒) ēi

  1. ēi interjection hey
    Domain: Modern Chinese 现代汉语
  2. éi interjection (surprise)
    Domain: Modern Chinese 现代汉语
  3. ěi interjection (disagreement)
    Domain: Modern Chinese 现代汉语
  4. èi interjection (agreement)
    Domain: Modern Chinese 现代汉语
  5. interjection sigh
    Domain: Modern Chinese 现代汉语

Also contained in

诶笑诶笑诶诒诶诒